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Pop ups and other problems

My kids have apparently captured some kind of malware on my desktop computer. I've tried malwarebytes and spybot S&D alone, but neither will get rid of my problem. It is an XP machine, and I use firefox as a browser. Can someone help me? Thank you in advance.

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Can you please run these few scans and this will give us a better idea of the problem.

Download Security Check by Screen317 from HERE* Save it to your Desktop.* Double-click SecurityCheck.exe* Follow the onscreen instructions inside of the black box.* A Notepad document should open automatically called checkup.txt; please post the contents of that document.Note: If a security program requests permission to access the Internet, allow it to do so.

*Close all open programs and internet browsers.*Double click on adwcleaner.exe to run the tool.*Click on Delete.*Confirm each time with Ok.*Your computer will be rebooted automatically. A text file will open after the restart.

*Please post the contents of that logfile with your next reply.*You can find the logfile at C:\AdwCleaner[S1].txt as well.

This scan is best done with Internet Explorer, but directions are left for other browsers.

Scan your machine with ESET OnlineScan

1 .Hold down Control and click HERE to open ESET OnlineScan in a new window.2 .Click the ESET Online Scanner button.3 .NOTE :.For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)

4. Check "YES, I accept the Terms of Use." 5. Click the Start button. 6. Accept any security warnings from your browser. 7. Under scan settings, check "Scan Archives" and "Remove found threats"8. Click Advanced settings and select the following:Scan potentially unwanted applicationsScan for potentially unsafe applicationsEnable Anti-Stealth technology 9. ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this will take some time to download the program for a first time, and then download updated data base (1 to 2 hours is not unusual)10. When the scan completes, click List Threats11. Click Export, and save the file to your desktop using a unique name, such as ESETScan.- Include the contents of this report in your next reply.12. Click the Back button.13. Click the Finish button

System errors:
=============
Error: (08/09/2013 06:12:31 PM) (Source: Service Control Manager) (User: )
Description: The Spybot-S&D 2 Security Center Service service failed to start due to the following error:
%%1053

Error: (07/31/2013 06:20:58 AM) (Source: Windows Update Agent) (User: )
Description: Unable to Connect: Windows is unable to connect to the automatic updates service and therefore cannot download and install updates according to the set schedule. Windows will continue to try to establish a connection.

Error: (07/30/2013 09:02:50 PM) (Source: Service Control Manager) (User: )
Description: The Microsoft Antimalware Service service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 15000 milliseconds: Restart the service.

Error: (07/30/2013 08:57:40 PM) (Source: Service Control Manager) (User: )
Description: The Spybot-S&D 2 Security Center Service service failed to start due to the following error:
%%1053

AdwCleaner picked 24x7 Help (Version: 2.1.0.33) Check in Add / Remove to make sure it is goneFast Free Converter (Version: 4.1) < Uninstall this program from Add / RemoveFreeRIP v3.1 (Version: 3.091) < This will add Pop-ups to your system

This is unrelated to your Firefox Browser, and the updates are for All Windows Operating systems.

Unless you have installed a SSD hard drive Total Fragmentation on Drive C:: 25%Defrag now

I would go and check how much is in the Photos (pictures) and Music folders, and put them on CDs or DVDs as your system is loading up a lotNOTE - Percentage of memory in use: 71% For a 2G system this is getting high and will slow you down

Noknojon, I will follow your last post once the ESET Scan is done. I was in the middle of it last night and the power went out, so I will start it again. Then I will follow this last post. Thank you for the help.

There are quite a few infections listed and most were removed in that scan.

I am glad to see C:\Program Files\24x7Help\App24x7Hook.exe Win32/24x7Help.A application gone

Percentage of memory in use: 71% < Keep an eye on this level, as I think about 20% should be a minimum of space available, and you already are down to 29% <= This will slow your system greatly.

Look in Picture and Music folders for anything that would be better loaded to CD / DVD and then Cleaned from your computer. There has been quite a bit of material downloaded, so make sure none is from Torrent sites, as this is where you pick up many infections -

Is PC Fix Speed 1.2.0.24 now gone, or can you look in Accessories > Windows Explorer > Program Files to see if there is any parts of this folder left. If there is, just Right click > Delete it -

Thank you. Here is the speccy snapshot. The system is running much better, and I don't see PC Fix Speed anywhere. I will run the file cleanup right now. I will also see if I can lose some data so that it doesn't have so much to load up.